Compare/Caterpillar AG6 vs Caterpillar D9

Caterpillar AG6 vs Caterpillar D9

Verdict: Caterpillar AG6 vs Caterpillar D9

The Caterpillar AG6 and the Caterpillar D9 are both tractors — here is how they stack up on the figures that matter. Caterpillar D9 leads on rated power with 286 hp against 240 hp. Caterpillar AG6 is the lighter machine (14,787 kg vs 29,948 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Caterpillar AG6 is the newer design (1986 vs 1955). In short: choose the Caterpillar D9 for outright pulling power, or the Caterpillar AG6 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Acreage600 acBudgetMain crop / use

Fit & specs

Caterpillar

Fit score

Best match

Clear

Caterpillar

Fit score

Best match

Clear

Rated power

240 hp

286 hp

Confidence

40%

Guide price

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Overview

Manufacturer

CaterpillarReference

liquid-cooledReference

Gear 1 used for pull test.Reference

Drive

crawlerReference

Steering

hydraulic wet disc clutchesReference

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Engine

179.0 kWReference

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Drawbar (claimed)

140.2 kWReference

171.5 kWReference

Displacement

10.5 LReference

24.1 LReference

Bore/Stroke

121 x 152 mmReference

159 x 203 mmReference

Power

179.0 kWReference

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Fuel system

direct injectionReference

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Air cleaner

dry dual elementReference

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Rated RPM

2200Reference

1240Reference

Starter

electricReference

2-cylinder gas pony engineReference

Starter volts

24Reference

6Reference

Oil capacity

27.4 LReference

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Coolant capacity

45.4 LReference

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Engine (net)

—

213.3 kWReference

Drawbar (tested)

—

188.1 kWReference

Power (net)

—

213.3 kWReference

Compression

—

15.5:1Reference

Max power

—

188.1 kWReference

Transmission

Gears

6 forward and reverseReference

3 forward and 2 reverseReference

Clutch

wet discReference

Capacities

Fuel

624.5 LReference

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PTO & Hydraulics

Hydraulic system

66.2 LReference

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Type

sliding gearReference

torque converterReference

Capacity

66.2 LReference

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Pressure

162.0 barReference

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Valves

5Reference

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Pump flow

99.9 lpmReference

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Dimensions

Weight

14787 kgReference

29948 kgReference

Length

513 cmReference

546 cmReference

Clearance (drawbar)

33 cmReference

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Gauge

187 cmReference

228 cmReference

Height

—

266 cmReference

Operating weight

—

29948 kgReference

Electrical

Charging system

alternatorReference

—

Charging amps

50Reference

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Caterpillar AG6 Tracks

Width

248 cmReference

304 cmReference

Caterpillar AG6 Height

Hood

204 cmReference

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Cab

317 cmReference

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Exhaust

347 cmReference

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Test results

Max pull

—

25730 kgReference

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.